Don't Dress for Dinner is a frenetic case of mistaken identity with more twists than a corkscrew. When Jacqueline decides to visit her mother for a few days, her husband Bernard sees an opportunity for a cozy weekend with his new mistress. His bachelor pal Robert calls to announce his return from Hong Kong, so Bernard invites him along as his alibi, also hiring a Cordon Bleu-level cook to cater a delicious dinner. But when Jacqueline realizes Robert is coming for a visit everything changes, and the high speed farce begins! One impossible situation leads to another as the hapless friend Robert finds himself the target of both amorous attention and wrathful vengeance, while Bernard tries desperately to salvage a scrap of illicit bliss from the wreckage of a weekend.